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  2. Distortion (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Distortion_(mathematics)

    In mathematics, the distortion is a measure of the amount by which a function from the Euclidean plane to itself distorts circles to ellipses. If the distortion of a function is equal to one, then it is conformal; if the distortion is bounded and the function is a homeomorphism, then it is quasiconformal. The distortion of a function ƒ of the ...

  3. Distortion problem - Wikipedia

    en.wikipedia.org/wiki/Distortion_problem

    In functional analysis, a branch of mathematics, the distortion problem is to determine by how much one can distort the unit sphere in a given Banach space using an equivalent norm. Specifically, a Banach space X is called λ-distortable if there exists an equivalent norm | x | on X such that, for all infinite-dimensional subspaces Y in X ,

  4. MyMathLab - Wikipedia

    en.wikipedia.org/wiki/MyMathLab

    MyMathLab is an online interactive and educational system designed by Pearson Education to accompany its published math textbooks. It covers courses from basic math through calculus and statistics, as well as math for business, engineering and future educators.

  5. Cialis Side Effects: What to Expect (& How to Avoid Them) - AOL

    www.aol.com/cialis-side-effects-expect-avoid...

    Like other side effects of Cialis, it usually fades as your body metabolizes the medication over the course of several hours. Since facial flushing is a common oral ED medication side effect ...

  6. Optical aberration - Wikipedia

    en.wikipedia.org/wiki/Optical_aberration

    The reverse, in which the perimeter is magnified more than the center, is known as "pincushion distortion" (figure 3b). This effect is called lens distortion or image distortion, and there are algorithms to correct it. Systems free of distortion are called orthoscopic (orthos, right, skopein to look) or rectilinear (straight lines). Figure 4

  7. If you’ve got a little change left over from gift-shopping today, use it for lunch. On Dec. 16, McDonald’s announced on its website that it’s selling its Double Cheeseburger for only 50 ...

  8. After seven years as a judge on American Idol, it's Katy Perry's turn to face feedback — and her latest critic isn't holding back.. Over the weekend, musician Steven James shared his reaction to ...

  9. Distortion - Wikipedia

    en.wikipedia.org/wiki/Distortion

    Distortion occurs when the transfer function F is more complicated than this. If F is a linear function, for instance a filter whose gain and/or delay varies with frequency, the signal suffers linear distortion. Linear distortion does not introduce new frequency components to a signal but does alter the balance of existing ones.